| 黄土丘陵小流域土壤水分时空分异与环境关系的数量分析 |
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| 引用本文： | 邱扬,傅伯杰,王军,陈利顶.黄土丘陵小流域土壤水分时空分异与环境关系的数量分析[J].生态学报,2000,20(5):741-747. |
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| 作者姓名： | 邱扬 傅伯杰 王军 陈利顶 |
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| 作者单位： | 中国科学院生态环境研究中心,北京,100085 |
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| 基金项目： | 国家杰出青年科学基金资助项目!( 4972 51 0 1 )，欧洲联盟资助项目!( ERBIC1 8CT970 1 58) |
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| 摘 要： | 采用ＤＣＣＡ排序，研究了流域尺谍上土壤水分的时空分异类型及环境因子的关系。研究结果表明，丰水年土壤水分垂直的分布呈降低型、波动型和增长型３种类型，主要影响因子为土地利用与地形（地貌类型、坡度、坡位与海拔高度）；土壤水分的季节变化表现为三峰型、四峰同步型与四峰滞后型３种类型，主要影响因子为降雨与地形（坡度、海拔高度、坡向与坡位）。分析得出，降低型与波动型的土壤水分利用率较高；从丰水年到欠水年，降低型
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| 关 键 词： | 黄土丘陵小流域 土壤水分 时空分异 土地利用 |
| 收稿时间： | 1999/7/23 0:00:00 |
| 修稿时间： | 2000/4/20 0:00:00 |
Quantitative analysis of relationships between spatial and temporal variation of soil moisture content and environmental factors at a gully catchment of the Loess Plateau |
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| QIU Yang,FU Bojie,WANG Jun and CHEN Liding.Quantitative analysis of relationships between spatial and temporal variation of soil moisture content and environmental factors at a gully catchment of the Loess Plateau[J].Acta Ecologica Sinica,2000,20(5):741-747. |
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| Authors: | QIU Yang FU Bojie WANG Jun and CHEN Liding |
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| Institution: | Research Center for Eco Environmental Sciences; Chinese Academy of Sciences; Beijing; China |
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| Abstract: | With the method of Detrended Canonical Correspondence Analysis(DCCA),we studied the relationship between the types of spatial and temporal variation of soil moisture content and the environmental factors at the scale of catchment.Results indicated that in a wetter year(1998),the profile distribution of soil moisture content shows three types:decreasing type,waving type and increasing type contributed to the influencing of land use and topography.Under the influencing of precipitation and topography.soi... |
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| Keywords: | gully catchment on the Loess Plateau soil moisture content spatial and temporal variation topography land use Detrended Canonical Correspondence Analysis(DCCA) |
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